Sand-press.



No. 658,582. Y Patented Sept. ,25, I900.

W. M POTTER.

SANDPRESS.

(Application filed May 21, 1900.}

'"0 Model.)

m: cums PETERS cov wow-urns" wnwmcrrou. A14:v

UNTTED PATENT OFFICE.

WILLIAM M. POTTER, OF SYRACUSE, NEWV YORK, ASSIGNOR TO E. O.

STEARNS & (30., OF SAME PLACE.

SAND-PRESS.

SPECIFICATION forming part of Letters Patent No. 658,582, datedSeptember 25, 1900.

Serial No. 17,435. (N model.)

To all whom it may concern.-

Be itknown that I, WILLIAM 111. POTTER, of Syracuse, in the county ofOnondaga, in the State of New York, have invented new and usefulImprovements in Sand Presses, of which the following, taken inconnection with the accompanying drawings, is a full, clear, and exactdescription.

My invention relates to sand-presses for forming molds used infoundries; and it consists in a special construction of press embodyingcertain new features by which the machine is simplified, the costreduced, and the operation improved.

My invention is fully illustrated in the accompanying drawings, inwhich- Figure I is an isometric View of my press with the movable partsin the second position. Fig. II is an end elevation thereof, showing theparts in the first position; Fig. III, a corresponding elevation in thethird po sition. Fig. IV is an enlarged inner elevation of a portion'ofthe press, portions being shown in dotted lines and portions in section,taken on line IV IV of Fig. 1. Figs. V and VI are respectively front andside elevations of one end piece and upright-carrying presser-headdetached. Fig. VII is an end elevation of table bed and bars detached.Fig. VIII is an elevation of shaft and connected parts. Fig. IX is afront elevation of one leg detached, showing the integral lug on itsouter face and the washer fitted to the lug.

The table for the press is composed of the legs 1 1, provided withenlarged feet 2 2 and flattened tops 3 3, to which is fitted the table-'bed 4, of inverted-V shape, provided with flanges 5 5 for securingbolts. On the tablebed and arranged at right angles thereto are thetable-bars 6 6 for supporting the flask, on which may be arranged anadjustable gage 7 for fixing the position of the flask. The legs areprovided on their outer faces with lugs 8, carrying washers 9, fittingslots 25 in the end piece and acting as guides therefor.

In the ends of the table-bed is journaled the shaft 13, having at eachend the head 14 and an integral crank 15 and at one end the socket 16,provided with set-screws 17 for the operative lever 18. To the cranks,by the draw-bars 21 21, are connected the end pieces 22 22, having theintegral arms 23 23 on their lower ends for attachment of springs,extending inwardly through the leg-openings 24 24, which act as a guidetherefor, the arm 23 following the curve on the left of this opening, asshown in Figs. II and III. In the lower ends of the end pieces are theguide-slots 25 25, fitting the lugs 8 8. The end pieces are alsoprovided with outer flanges 26 26 and corresponding inner guide-flanges27 27, engaging with the aniifriction-rollers 29 29, secured on thetable ends or on other-fixed part. The end pieces are also formed-withintegral ears 3O 30 for the attachment of the drawbars and sockets 31 31for the uprights 32 32, which are threaded to carry adjustably thepresser-head 33, nuts 34 34 being provided for holding in position andpermitting vertical adjustment of the presser-head.

Springs 40 are connected to the arms 23 on the end pieces and to somesuitable fixed point on the frame, as lugs 41 41, to act as acounterbalance and draw the presser-head back out of the way when themold is completed and the pull on the lever is released.

My machine is operated as follows: Beginning with the parts in positionshown in Fig. II, the flask is set in place on the table, containing themold and sufficient sand. The presser-head is then adjusted up or downon the uprights to bring it low enough to exert sufficient pressure. Theoperator, standing in front of the press, draws the lever forward to theposition of Fig. I, bringing the presserbar directly over the flask. Hethen continues to draw the lever forward and down to the position inFig. III, by which the presserhead is forced directly down upon thesand, exerting sufficient regular pressure thereon -to make a perfectcompact mold. The lugs and antifriction-rollers on the outer face of thelegs cooperate with the slot and flanges to act as guides. When the moldhas .thus been pressed, the lever is released and the presser-headreturned to its first position by the springs.

Having thus fully described my invention, what I claim, and desire tosecure by Letters Patent, is

1. In combination in a sand-press, supporting-legs, guide-lugs on theouter faces of the legs, a table-bed fitted and secured thereto, across-shaft journaled therein under and parallel to the bed, cranks onthe ends of the shaft, an operating-lever on one end, end piecesprovided with slots to fit the guide lugs on the legs and with flangeson the inner face of each, draw-bars connecting the upper ends of theend pieces to the crau ks, threaded uprights on the end pieces, apresser-head adjustably supported thereon, and an antifrietion-rollersecured on the outer face of the table-bed engaging with flanges on theinner faces of the end pieces when the latter are turned in a verticalposition.

2. In combination in a sandpress, supporting-legs, guide-lugs on theirouter faces, a suitable table-bed fitted and secured thereto, across-shaft journaled therein under and parallel to the bed, cranks onthe ends of the shaft, an operatinglever on one end, end pieces providedwith slots to fit the guidelugs, draw-bars connecting the upper ends ofthe end pieces to the cranks, threaded uprights on the end pieces, apresser head adjustably supported thereon, integral arms on the lowerends of the end pieces inwardly extending through openings in the legsand springs connecting said arms to the frame.

In combination in a sand-press, suitable legs, a table-bed secured tothe top thereof, integral table-bars on the bed, integral guidelugs onthe outer faces of the legs, antifriclion-rollers on the outer surfaceof frame,

washers fitted to the guide-lugs, a cross-shaft journaled under andparallel to the table-bed having integral cranks, and an operating-1everfitted to one end of the shaft, end pieces having slotted lower ends tofit the guide-lugs, integral flanges on the inner faces of the endpieces to engage with antifriction-rollers on the outer faces of theframe, threaded uprights on the end pieces, a presser-head adjustablycarried on the uprights, in tegral arms on the lower ends of the endpieces inwardly extending through openings in the legs on each side andspiral springs connected to the arms and to the frame.

4. In combination in a sand-press, suitable supporting-legs havingenlarged bases, openlugs and flattened tops, a table-bed of inverted-Vshape having end plates fitted thereto and secured to the top of saidlegs, integral cross-bars on said table-bed, an adjustable gage fittedto said cross-bars, integral guide-l ugs on the outer faces of thetab1e-legs, antifriction-rollers on the outer faces of said end plates,a shaft jou rnaled in said end plates under and parallel to thetable-bed, integral heads and cranks on the ends of the shaft, anintegral, cylindrical socket provided with a set-screw on one endthereof, a lever fitted to the socket, corresponding end pieces fittedto the outer faces of the legs having integral ears on the upperends,slotted lower ends to fit the guide-lugs, outer flanges, innerguideflanges to engage with the antifriction-rollers when the end piecesare turned into their vertical position, draw-bars jourualed to saidcranks and to integral ears on the upperends of the end pieces, threadeduprights secured to the upper end of the end pieces, a prcsserheadcarried on the uprights, nuts fitted thereto for adjusting the positionof the presserhead, integral arms on the lower ends of the end piecesinwardly extending through openings in the legs and spiral springsattached to said arms and to .fixed studs on the inner faces of the legsto return the presser-head into first. position when the operation hasbeen completed.

In testimony whereof I have hereunto signed my name.

WILLIAM M. POTTER. [L. s] Witnesses:

O. C. SCHOENECK, M. T. BROWNELL.

